It is impossible that all of that account get banned permanently in the forum at the same time and day without any such necesarry failure on following rules on the forum.Maybe post quality is the issue of getting banned or the accounts are farmed

Just perusing through meta sees this thread about an office of bitcointalk spam looks and goes ... nice catch.I don't know whether to say that is a bitcoiner's extreme dedication or facepalm so I'll just put in an image for the one guy and a snippet from one of that giant list.

Bitcoin provided me with the opportunity for good additional earnings without much time and probably in the future it will make me very rich.

(Yes I saw the first few were all encryptotel sigs but never heard of that coin and it gets converted eventually unless you killed a whole coin and artificial thread boosting scheme kind of looks like it with that list edit nvm their campaign just ended still a good catch ^^)